... i am dissapoint!
ok, first of all, Best Zombie movie is a minefield, and as some here have already said, to diss the various splits in the growth of zombie movies over the years is why you can't really call a best. there's a lot of top picks depending on what? best slow zombie, fast zombie, historical relevance, action? welp, you picked two of the better parody-style ones, and I can't blame you. I may have collected my fair share, but SoTD and Zombieland are in my top 5s overall.
as Deshin above me already said Zombieland had good scenes, but for the whole MOVIE, id say SOTD takes this. hands down. maybe i do just really like Simon Pegg and Nick Frost, but it really did feel like it fit the hybrid genre it was given, and as a full movie, ive watched it more than any other zombie film. yeah, Shaun gets down about his problems, but its counterbalanced well by how one day life is normal, then it flips on his head for him in a very surprising manner when we already know something has gone down. its one of my favorite Zero Moment Zombie films just for how it paces the outbreak around shaun- and how he doesn't realize whats going on until the girl in the garden (which, by the way- in the garden there's a girl). the fact they worked in some hilarious sequences despite how much worse it was getting really brought it home into my most watched slot. where with most zombie movies the finale is why i watch, SoTD just felt great the whole way across.
ok, where was the Queen countershot to the "AMERICA!" or "we have Emma Stone" bits? that's a super weapon!